句型转换。

1. Our city is beautiful. (改为感叹句)

    _______ our city is! 

2. There are two hundred famous companies in Xinjiang from 19 provinces. (对画线部分提问)

    _______ _______ famous companies in Xinjiang are there from 19 provinces?

3. I am surprised to find great changes have taken place in China. (改为同义句)

    _______ my _______, I find great changes have taken place in China.

4. My son is too young to join the army. (改为同义句)

    My son isn't _______ to join the army.

5. She hardly knew how to solve this math problem. (完成反义疑问句)

    She hardly knew how to solve this math problem, _______ _______?